311320011100 has 72 divisors (see below), whose sum is σ = 772389626400. Its totient is φ = 106694603520.

The previous prime is 311320011077. The next prime is 311320011139. The reversal of 311320011100 is 1110023113.

It is a super-2 number, since 2×311320011100² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1644126 + ... + 1823674.

It is an arithmetic number, because the mean of its divisors is an integer number (10727633700).

Almost surely, 2^311320011100 is an apocalyptic number.

It is an amenable number.

311320011100 is an abundant number, since it is smaller than the sum of its proper divisors (461069615300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311320011100 is a wasteful number, since it uses less digits than its factorization.

311320011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182047 (or 182040 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 311320011100 its reverse (1110023113), we get a palindrome (312430034213).

The spelling of 311320011100 in words is "three hundred eleven billion, three hundred twenty million, eleven thousand, one hundred".